PureCrypter | Threat Level: medium | Type: Loader

Cryptographic Identifiers

SHA256d79dbb236bd0f95b5fc44b696c7dc098b42519931778080040a73b9eaf57ee86
MD5a864acb83b3a238490b5019c40695ee6
File Typexls
Size1044.0 KB
First Seen2023-03-29
File NameOrder PB2EFLPWIRTFGBD2Z .xls
TagsCVE-2017-11882, purecrypter, xls

Malware Family: PureCrypter

PureCrypter, loader'dır.

TypeLoader
Programming Language.NET
Target PlatformWindows
C2 ProtocolHTTPS
PurposeLoader
First Seen Year2021

Threat Indicators (IOC)

  • SHA256: d79dbb236bd0f95b5fc44b696c7dc098b42519931778080040a73b9eaf57ee86
  • MD5: a864acb83b3a238490b5019c40695ee6

You can verify all hash values of this sample on VirusTotal.

System Cleanup Guide

  1. Disconnect the system from the network — the loader may be downloading more malware
  2. Analyze every downloaded payload
  3. Inspect all network traffic and cut suspicious connections
  4. Run a full antivirus scan
  5. Consider reimaging the system

YARA Rule Hints

rule PureCrypter_SHA256 {
    meta:
        description = "PureCrypter sample: d79dbb236bd0f95b"
        threat_level = "medium"
        first_seen = "2023-03-29"
    condition:
        hash.sha256(0, filesize) == "d79dbb236bd0f95b5fc44b696c7dc098b42519931778080040a73b9eaf57ee86"
}

PureCrypter — Malware Profile

PureCrypter, AV atlatma loader'dır.

Malware Type
Loader
Programming Language
.NET
C2 Protocol
HTTPS
Target Systems
Windows

Capabilities & Behavior

Payload İndirme
Süreç Enjeksiyonu
Modüler Mimari
Kimlik Bilgisi Hırsızlığı
Yanal Hareket
Kalıcılık
Anti-VM/Sandbox
İkincil Payload Dağıtımı

IOC List (2 indicators)

IOC — PureCrypter
# SHA256 d79dbb236bd0f95b5fc44b696c7dc098b42519931778080040a73b9eaf57ee86 # MD5 a864acb83b3a238490b5019c40695ee6
TypeValueNote
sha256 d79dbb236bd0f95b5fc44b696c7dc098b42519931778080040a73b9eaf57ee86 Sample:PureCrypter
md5 a864acb83b3a238490b5019c40695ee6 Sample:PureCrypter
Tags
purecrypterloadermalwaremediumsha256hash-analizi